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Farmall & IHC Tractors Discussion Board

Re: MD Linkage


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Posted by Haas on August 02, 2010 at 19:49:25 from (75.200.39.24):

In Reply to: Re: MD Linkage posted by David Boelman on August 02, 2010 at 17:04:36:

It means the switch in the manifold is faulty, or you had the diesel/gas switchover lever back and the switch was closed, grounding the mag. Some of the older manuals tell you incorrectly that the switchover lever has to be back for starting on gas. Forward is gas position, back it diesel. The switchover lever does 4 things: 1) when forward opens the mag grounding switch so you will get a spark 2)when forward opens the decompression valves for gasoline operation 3)when forward releases the carb float so gas can flow to the carb. when back the carb float is locked up to prevent gas flow in diesel operation and 4)when forward positions butterflys in the manifold so air flows through the carb. When back air flow to the carb is blocked.


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